Data correcting method for high-precision data acquiring system

A data acquisition system, data correction technology, applied in the direction of digital technology network, impedance network, electrical components, etc., to achieve the effect of improving operation speed and excellent real-time performance

Inactive Publication Date: 2013-08-07
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
View PDF2 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Acquisition systems with data correction on the market are still relatively rare, especially according to the characteristics of er

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Data correcting method for high-precision data acquiring system
  • Data correcting method for high-precision data acquiring system
  • Data correcting method for high-precision data acquiring system

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0026] Such as figure 1 As shown, the flow chart of the implementation of a data correction method for a high-precision data acquisition system of the present invention is composed of system error correction and data denoising filtering, wherein the system error correction includes zero point error and gain error correction, Data denoising filtering includes the first level filtering composed of super value filtering and recursive average filtering and the second level filtering completed by the weighted average wavelet threshold denoising method.

[0027] The data obtained after the signal passes through the data acquisition system is first corrected for zero point error. The specific implementation method is to subtract the actual voltage value measured when the input is short-circuited from the current voltage value.

[0028] reference figure 2 As shown in th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a data correcting method for high-precision data acquiring system. The data correcting method includes system error correcting and data denoising filtering. Data sampled by the system are firstly subjected to zero error correction and zero error and gain error correction by a gain error correcting and compensating system and are subjected to denoising filtering by two-stage filtering scheme. Noise easier to remove in the data can be subjected to primary filtering through the first-stage overbalance filtering and recurrence average filtering algorithm, and noise hard to remove can be filtered through secondary improved weighted average wavelet threshold value denoising method. According to characteristics of error and noise in the system, composite processing mode of error correction and two-stage denoising filtering is adopted. Not only can cane system error be reduced greatly, but noise is almost completely suppressed. Signal noise ratio is increased, some details of signals are highlighted and subsequent work is facilitated.

Description

technical field [0001] The invention relates to a data correction method, in particular to a data correction method used in a high-precision data collection system, and belongs to the field of data collection. Background technique [0002] With the rapid development of computer science and technology, digital technology is more and more widely used in scientific research, industrial production and various aspects of human daily life due to its convenience, flexibility, stability and reliability. As an essential part of digital technology, data acquisition technology has also been deeply researched and developed. People usually convert the analog signal sent by the sensor into a digital signal according to the sampling theorem, and then process these digital signals. Data acquisition can be said to be the core of digital signal processing, and the quality of data acquisition will directly affect future work. Data acquisition is widely used in various fields, and has penetra...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H03H17/00
Inventor 钟玲娜唐小萍胡松严伟胡博
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap